under arms — Armed for fighting, ready for battle … New dictionary of synonyms

under arms — formal trained and ready to fight as an army … English dictionary

Robbery Under Arms — Infobox Book | name = Robbery Under Arms. A Story of Life and Adventure in the Bush and in the Goldfields of Australia. image caption = First edition. Three octavo volumes (7 3/16 x 4 13/16 inches; 182 x 122 mm.). Original smooth grass green… … Wikipedia

(be) under arms — be under ˈarms idiom (formal) to have weapons and be ready to fight in a war Main entry: ↑armsidiom … Useful english dictionary